diff options
Diffstat (limited to 'library/std/src/sys/windows/c.rs')
| -rw-r--r-- | library/std/src/sys/windows/c.rs | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/library/std/src/sys/windows/c.rs b/library/std/src/sys/windows/c.rs index 5f14edaf067..b92aa420177 100644 --- a/library/std/src/sys/windows/c.rs +++ b/library/std/src/sys/windows/c.rs @@ -325,7 +325,9 @@ union IO_STATUS_BLOCK_union { } impl Default for IO_STATUS_BLOCK_union { fn default() -> Self { - Self { Pointer: ptr::null_mut() } + let mut this = Self { Pointer: ptr::null_mut() }; + this.Status = STATUS_PENDING; + this } } #[repr(C)] @@ -334,6 +336,16 @@ pub struct IO_STATUS_BLOCK { u: IO_STATUS_BLOCK_union, pub Information: usize, } +impl IO_STATUS_BLOCK { + pub fn status(&self) -> NTSTATUS { + // SAFETY: If `self.u.Status` was set then this is obviously safe. + // If `self.u.Pointer` was set then this is the equivalent to converting + // the pointer to an integer, which is also safe. + // Currently the only safe way to construct `IO_STATUS_BLOCK` outside of + // this module is to call the `default` method, which sets the `Status`. + unsafe { self.u.Status } + } +} pub type LPOVERLAPPED_COMPLETION_ROUTINE = unsafe extern "system" fn( dwErrorCode: DWORD, |